Standard server racks & network racks for 19-inch equipments; beams are graduated in U; of IEC297-1-1986 standard; loading capacity of over1000kg; high-quality castors; polyester-epoxy powder coating; aluminum alloy doors Model Dimension Attachment NG- S6942---600W*970D*2025(42U)H---6 fans, 2 fixed shelves NG- S6945---600W*970D*2158(45U)H---6 fans, 2 fixed shelves NG- S6142---600W*1100D*2025(42U)H---6 fans, 2 fixed shelves NG- S6145---600W*1100D*2158(45U)H---6 fans, 2 fixed shelves NG- S8942---800W*970D*2025(42U)H---6 fans, 2 fixed shelves NG- S8945---800W*970D*2158(45U)H---6 fans, 2 fixed shelves NG- S8142---800W*1100D*2025(42U)H---6 fans, 2 fixed shelves NG- S8145---800W*1100D*2158(45U)H---6 fans, 2 fixed shelves NG-S series are all with circle perforated front door, double circle perforated back door and circle perforated side door and top. The perforated area of front, back & side doors all reach 47.34%.